LATIN DICTIONARYLexicon Latīnum
noun · neutersecond declension

actīnium

actīnium n (genitive actīniī)
Classical[akˈtiː.ni.ũː]Ecclesiastical[akˈtiː.ni.um]

Meaning

  1. actinium

Declension

declension
formsingularplural
nominativeactīniumactīnia
genitiveactīniīactīniōrum
dativeactīniōactīniīs
accusativeactīniumactīnia
ablativeactīniōactīniīs
vocativeactīniumactīnia

Origins

From Ancient Greek ἀκτίς, ἀκτῖν- (aktís, aktîn-, “ray”).

Quick answers

What does actīnium mean in Latin?
actīnium, a noun, means “actinium”.
What is the genitive of actīnium?
The genitive singular is actīniī. actīnium is neuter, second declension.
How do you pronounce actīnium?
In classical Latin, [akˈtiː.ni.ũː]; in ecclesiastical (church) Latin, [akˈtiː.ni.um].